The Amazing Universe: Galaxies

The video explains our solar system, highlighting the sun, planets, and their vast distances. It then introduces galaxies, describing them as massive collections of stars, gases, and dust bound by gravity. The Milky Way is identified as our galaxy, and various galaxy shapes are discussed, including spiral, elliptical, barred spiral, and irregular forms. The video concludes by noting the universe's vastness, comprising billions of galaxies.

Explain the significance of the sun to life on Earth.

What is a galaxy and what does it contain?